59066e85f0
We want to decorrelate the explicit buffer synchronization from the
window buffers, and move that to the GLAMOR/GBM code instead.
To do that, we need to be able to invoke the xwl_window_buffer's
release_callback() routine from outside the window buffer code.
For that purpose, introduce xwl_window_buffer_release() which calls
xwl_window_buffer_release_callback() for us.
This is preparation work for the following changes, no functional change
intended at this point.
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1571>
(cherry picked from commit b5082073b0)
X Server
The X server accepts requests from client applications to create windows, which are (normally rectangular) "virtual screens" that the client program can draw into.
Windows are then composed on the actual screen by the X server (or by a separate composite manager) as directed by the window manager, which usually communicates with the user via graphical controls such as buttons and draggable titlebars and borders.
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